I recently updated a simple program that uses a filedialog control to locate  
  
a file.  When I try and run the following code I get this error:  
  
Current thread must be set to single thread apartment (STA) mode before OLE  
  
calls can be made. Ensure that your Main function has STAThreadAttribute  
  
marked on it. This exception is only raised if a debugger is attached to the  
  
process.  
  
Here is the code  
  
this.openFileDialog1.FileName = this.txtCompilePath.Text;  
  
DialogResult result = openFileDialog1.ShowDialog(this);  
  
if (openFileDialog1.ShowDialog() == DialogResult.OK)  
  
{  
  
this.txtCompilePath.Text = openFileDialog1.FileName;  
  
}

Add the STAThreadAttribute attribute on the Main method. This attribute is required if your program access OLE related functions, like Clipboard class does.

Add the STAThreadAttribute attribute on the Main method. This attribute is required if your program access OLE related functions, like Clipboard class does.

I was having same problem so, following solution posted at link below, I simply deleted all dlls (there were a few old ones) in my output folder then rebuilt it and it worked.

http://www.devnewsgroups.net/group/microsoft.public.dotnet.framework.windowsforms/topic36723.aspx

My main function already had [STAThread] above it, but the URL provided in the previous message was what I needed. There was just an old DLL in my bin\debug folder that had to be deleted.

I get the same error aswel.

[STATThread] is already on top of the main method

Which "old DLL" are you referring to?

Thanks

EThan

Hi,

I am using a clipboard function in my webpage.

It gives me the same error

I dont have as such any main fnction in my program.

I tried placing [STATThread] before the event handler of the button click event.

On this button click text on the webpage has to be coped to clipboard

I need help regarding this

After I deleted my used DLL files, everything is going fine.

Hi, my project is a C# .NET website, so it doesn't have a main(). How do I apply the advice to set STA mode if there's no main() entry point?

Thanks,

- Steve

Ditto with Steve and t-VKS.
If anyone knows the solution, please post.

Thanks,
Phil

private voidMetodoCualquiera() //no necesariamente el main, solo el que llama al hilo que llama al dialog

{

hilo.Start(IVAVentas);

}

medio confuso pero ahi está